ATA 27 (B777 AMM Part 1) Flashcards
Number of modes of operation of the PFCS is: (B2)
a. two
b. three
c. four
B
The flight control ARINC 629 buses have digital interfaces with the airplane systems: (B1, B2)
a. through the left and right AIMS cabinets (data conversion gateway function) and system
ARINC 629 buses
b. by direct connections with PSEUs, FSEUs, system card files, WEUs.
c. through EMLS and OPAS
A
All analog interfaces with the PFCS go to: (B1, B2)
a. the AIMS cabinets
b. the ACE
c. the PCUs
B
The actuator control electronics (ACE) operates in (B2)
a. direct PFCS mode only
b. normal and secondary PFCS mode only.
c. all three PFCS modes
C
With the autopilot engaged, the PFCS (B2)
a. does not function
b. receives command inputs from the AFDCs.
c. operates in parallel with the AFDS as backup
B
The High Lift Control System (HLCS) controls the operation of the: (B1, B2)
a. Trailing edge flaps, leading edge slats, Krueger flaps.
b. Trailing edge flaps, leading edge slats, Krueger flaps, spoilers
c. Trailing edge flaps, leading edge slats, Krueger flaps, spoilers, speed brakes
A
The High Lift Control System (HLCS) has digital interface with many other airplane systems through: (B1, B2)
a. the flight control ARINC 629 buses
b. the systems ARINC 629 buses.
c. the AIMS cabinets
B
On the MAT you can do: (B1, B2)
a. the operational tests for the HLCS.
b. the system tests for the HLCS.
c. the replacement tests for HLCS
B
Wheel Force Transducer signals: (B1, B2)
a. are used for the bank angle protection function override
b. represent the control wheel position and its movement.
c. measure autopilot input to detect a failed backdrive actuator.
A
The rudder PCU null LVDT: (B1, B2)
a. reduce oscillation as the actuator extends and retracts
b. measures the movement of the actuator as it extends and retracts
c. is used for rigging the rudder PCU
C
The elevator off-load function (B1, B2)
a. transfers manual and autopilot commanded elevator deflection to the stabilizer
b. is a function of autopilot
c. is used for elevator removal procedure
A
Which conditions causes the column feel force to increase? (B1, B2)
a. The feel actuator extends as the airspeed increases
b. The feel actuator extends as the airspeed decreases
c. The feel actuator retracts as the airspeed increases
A
A Flap skew is detected: (B1, B2)
a. only during primary mode flap operation
b. by 16 LVDTs, which send position signals to FSEU
c. by 16 proximity switches, which send position signals to FSEU
B
Spoilers 4 and 11: (B1, B2)
a. are fly-by-wire in roll control and speedbrake control
b. are mechanically controlled for roll control and are fly-by-wire in speedbrake control
c. are fly-by-wire for roll control and are mechanically controlled in speedbrake control
B
Aileron lockout function operates (B1)
a. Based on airplane speed and altitude in Normal mode and flap position in Secondary and Direct modes
b. Only when Autopilot engaged
c. Only in Normal mode
A
Manual bypass valve on spoiler PCU is used for (B1)
a. Moving the spoiler by hand during maintenance without hydraulic pressure
b. Moving the spoiler by hand during maintenance with hydraulic pressure
c. Moving the spoiler if EHSV has failed
A
Aileron PCU is rigged by using (B1)
a. Null LVDT
b. PCU rod end
c. Position LVDTS
A
Which spoilers are controlled by cables? (B1)
a. 5 and 10
b. 4 and 11
c. 6 and 9
B
Which spoilers have lock out function? (B1)
a. 6 and 9
b. 4 and 11
c. 5 and 10
C
Purpose of the friction brake in Rudder system is to (B1)
a. Move rudder pedal in autopilot
b. Move rudder pedal to neutral position
c. Simulate the resistance of a cable-controlled system
C
Rudder trimb is used to (B1)
a. Trim the rudder
b. Decrease the force on rudder pedal
c. Increase rudder effect
C
The Manual Trim Cancel switch (B1)
a. Operates only when pilot turn the switch more than 25
b. Operates only in Direct Mode
c. Is used to remove pilot Rudder Trim command
C
What is the purpose of Elevator PCU manual test valve? (B1)
a. Release hydraulic lock in PCU
b. Adjust the null LVDT
c. Test PCU compensator/relief valve
C
What component on the STCM is used to test the hydraulic brake? (B1)
a. Rate control valve
b. Brake bypass valve
c. Motor-operated shutoff valve
B
